Implement detector benchmark for the barrel calorimeter for energy resolution

benchmarks/barrel_ecal/scripts/emcal_barrel_electrons_analysis.cxx

@@ -39,6 +39,7 @@ void emcal_barrel_electrons_analysis(const char* input_fname = "sim_output/sim_e
   auto Ethr = [](std::vector<dd4pod::Geant4ParticleData> const& input) {
     std::vector<double> result;
     result.push_back(TMath::Sqrt(input[2].psx*input[2].psx + input[2].psy*input[2].psy + input[2].psz*input[2].psz + input[2].mass*input[2].mass));
+  std::cout<<"Ethr: "<<result.size()<<endl;
   return result;
   };
 
@@ -52,6 +53,7 @@ void emcal_barrel_electrons_analysis(const char* input_fname = "sim_output/sim_e
     for (const auto& i: evt)
       total_edep += i.energyDeposit;
     result.push_back(total_edep);
+    std::cout<<"Esim: "<<result.size()<<endl;
     return result;
   };
 
@@ -63,6 +65,7 @@ void emcal_barrel_electrons_analysis(const char* input_fname = "sim_output/sim_e
       for (const auto& E2 : sampled)
         result.push_back(E2 / E1);
     }
+    std::cout<<"fsam: "<<result.size()<<endl;
     return result;
   };